Bigeye thresher vs Cat flea

Alopias pelagicus compared with Ctenocephalides felis

Key Differences

• Bigeye thresher is Endangered while Cat flea is Not Evaluated.

Taxonomic Classification

Rank	Bigeye thresher	Cat flea
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Chondrichthyes (Cartilaginous Fish)	Insecta (Insects)
Order	Lamniformes (Mackerel Sharks)	Siphonaptera (Siphonaptera)
Family	Alopiidae	Pulicidae
Genus	Alopias	Ctenocephalides
Species	Alopias pelagicus	Ctenocephalides felis

Evolutionary Relationship

Bigeye thresher and Cat flea share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Bigeye thresher

EN — Endangered

Cat flea

NE — Not Evaluated

Physical Characteristics

Attribute	Bigeye thresher	Cat flea
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bigeye thresher

Habitat

Typically found in marine environments from coastal waters to deep ocean.

Range

Distributed across Colombia and Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Cat flea

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Africa (South Africa), Europe (6 countries), and North America (United States).

Bigeye thresher

The Bigeye thresher (Alopias pelagicus) is a species in the genus Alopias. It is currently classified as Endangered on the IUCN Red List. Typically found in marine environments from coastal waters to deep ocean.

Cat flea

The Cat flea (Ctenocephalides felis) is a species in the genus Ctenocephalides. Typically found in virtually all terrestrial and freshwater habitats.